GNSS Insights

The GNSS Antenna Blog

Field-tested guidance on choosing and deploying GNSS antennas — survey and RTK, anti-jamming CRPA, timing, and UAV integration. Written for the engineers who have to make the call.

Explore by topic

Start at a hub — each one maps its whole cluster

Survey & RTK

Choke rings, phase center, CORS and the eight specs that decide a survey-grade purchase.

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UAV & Drone

Choosing, mounting and validating an antenna on a small, moving, electrically noisy platform.

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Anti-Jamming & CRPA

How null-steering arrays reject a jammer — from first principles to a copy-ready RFP.

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Timing & Sync

Group delay, PCV and multipath — the antenna specs that decide your time error.

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Marine & Offshore

Salt, a moving deck, and a sea that reflects every satellite — what makes an antenna marine-grade.

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Aerospace & Defense

Featured

GNSS Antennas for Military & ISR Drones

On a military drone the antenna's job shifts from best accuracy to assured PNT under jamming and spoofing — why anti-jam, integrity and SWaP-C decide it.

Jul 21, 202610 min read

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Marine

GNSS for Offshore Survey & Hydrography

IHO S-44 sets the total uncertainty a survey must hit — 1 m THU at Exclusive Order. Why GNSS gets only a slice, and how PPP and the antenna deliver it at sea.

Jul 17, 20268 min

Marine

Marine & Offshore GNSS Antennas

Salt, a moving deck, and a sea that reflects every satellite. What makes a GNSS antenna marine-grade — environment, multipath, masthead install, selection.

Jul 17, 20267 min

Aerospace & Defense

GNSS Antennas for Launch Vehicles & Rockets

A rocket pushes GNSS past CoCom limits into thousands of g of pyroshock. How launch antennas hold coverage through the roll and feed autonomous flight safety.

Jul 15, 20267 min

Vehicle

GNSS for Autonomous Vehicles: The Accuracy Stack

Self-driving cars need lane-level accuracy (~0.42 m) — but integrity matters more: knowing when to trust the fix. RTK, PPP, dead reckoning, and the antenna.

Jul 15, 20268 min

Timing

GNSS Holdover & Timing Resilience

When GNSS is jammed, spoofed, or lost, holdover keeps time — OCXO for hours, rubidium a day, cesium 14 days. The antenna is the cheapest resilience layer.

Jul 13, 20267 min

Timing

GNSS Time Sync for Power Grids & Substations

The grid runs on GPS time: synchrophasors and fault location need ±1 µs, delivered by the IEEE 1588 power profile. Why the substation is brutal on antennas.

Jul 13, 20268 min

Timing

GNSS Timing for Data Centers & Finance

Finance and data centers must prove time traceable to UTC — MiFID II's 100 µs, FINRA's 50 ms. Why systems run in nanoseconds, and where the antenna fits.

Jul 13, 20269 min

Timing

GNSS Timing for 5G: PTP, SyncE & ±1.5 µs

5G TDD needs ±1.5 µs phase sync, and the chain traces back to GNSS. How PTP, SyncE and PRTC classes deliver it — and why the antenna is the first link.

Jul 12, 202610 min

Survey & RTK

GNSS Antenna Cost: What Drives the Price

GNSS antennas run from ~$20 patches to $10k+ choke rings. What you're actually paying for — bands, calibration, LNA, ruggedization — and how to spec to need.

Jul 11, 20266 min

UAV & Drone

RTK vs PPK for Drone Mapping: Which to Use

RTK corrects your drone's position in real time; PPK corrects it after landing. When each wins, the hybrid workflow, and what both need from the antenna.

Jul 11, 20266 min

Anti-Jamming

GPS Jamming vs Spoofing: The Real Difference

GPS jamming denies your position; spoofing deceives it — and spoofing is far more dangerous. The mechanisms, the 2024 surge, and how to defend against each.

Jul 10, 20267 min

comparison

Survey-Grade vs Low-Cost GNSS Antenna Accuracy

How much accuracy do you actually lose with a low-cost GNSS antenna? Real RTK numbers, why the antenna outweighs the receiver, and when cheap is fine vs costly.

Jun 24, 20266 min

UAV & Drone

Avoid GNSS Antenna Integration Mistakes — UAV RTK Guide

Engineer-first guide to common GNSS antenna integration mistakes for UAV RTK prototypes. Actionable fixes for mounting, cabling, ground planes, EMI, firmware, and validation.

Jun 17, 202610 min

Survey & RTK

How to Set Up an RTK Base Station Antenna [2026 Guide]

Step-by-step guide for RF timing engineers: site selection, antenna mounting, cabling, surge protection, coordinate setup, and commissioning validation for RTK base stations.

Jun 17, 202610 min

Survey & RTK

How to Choose a High-Precision GNSS Antenna: A Buyer's Guide for Engineers

A working framework for surveying, geodesy, and machine-control engineers picking RTK, choke-ring, and geodetic antennas — phase center stability, multipath rejection, multi-band coverage, and the 8 specs that actually matter.

Jun 16, 202623 min

Survey & RTK

OEM GNSS Antenna Customization Checklist for RTK

Practical OEM GNSS antenna customization checklist for UAV RTK: frequency tuning, radome, form factor, cables, mounting, EMI mitigation, and validation steps.

Jun 16, 20268 min

Survey & RTK

Complete Guide: GNSS Antenna RF Connectors — SMA, TNC, I-PEX

Practical engineer’s guide to choosing SMA, TNC, or I‑PEX RF connectors for GNSS antennas — reduce RTK failures with torque, cabling, and sealing tips. Read now.

Jun 15, 202610 min

UAV & Drone

GNSS Antenna Environmental Qualification for UAV RTK

Practical guide for engineers on GNSS antenna environmental qualification—vibration, shock, thermal cycling, and IP. Includes RTK metrics, test recipes, and acceptance criteria.

Jun 14, 20268 min

UAV & Drone

How to Read a GNSS Antenna Datasheet for UAV RTK Guide

Practical, step-by-step guide to interpret GNSS antenna datasheets—gain, noise figure, axial ratio, and PCV—for reliable UAV RTK integration and validation.

Jun 12, 20268 min

UAV & Drone

RDSS Antenna Considerations for Drones — RTK Coexistence

Practical engineer’s guide to selecting, mounting, and validating RDSS antennas on drones to preserve RTK accuracy—includes test metrics, mitigation checklists, and calibration steps.

Jun 11, 20268 min

BeiDou / RDSS

Ultimate Guide: RDSS vs RNSS — BeiDou & Antenna Impacts

Ultimate guide clarifying RDSS vs RNSS for BeiDou and UAV RTK—practical antenna implications, integration checklist, test scenarios, and actionable recommendations. Read now.

Jun 10, 20269 min

BeiDou / RDSS

Ultimate Guide: BeiDou RDSS Short Message Communication

Comprehensive ultimate guide to BeiDou RDSS short message communication for drone engineers — antennas, RTK impact, mounting, firmware, and validation. Read actionable steps.

Jun 9, 202611 min

Agriculture

Multi‑frequency GNSS for Agriculture: When Dual vs Tri‑Band Helps

Practical engineering guidance on multi-frequency GNSS for agriculture—when dual or tri‑band improves RTK uptime, with test methods, antenna and integration checklist.

Jun 8, 20268 min

Survey & RTK

RTK guidance drift: antenna mounting & gain best practices

Practical GNSS antenna guidance for RTK guidance drift—how antenna gain patterns, mounting, cabling, and validation improve pass-to-pass accuracy for drone engineers.

Jun 7, 20268 min

Agriculture

GNSS Antenna Durability for Farm Equipment: Best Practices

Engineer-focused guide to GNSS antenna durability for farm equipment — practical RTK reliability, mounting, cabling, sealing, and test protocols to prevent cycle slips.

Jun 6, 202610 min

Agriculture

GNSS Antennas for Precision Agriculture: RTK Best Practices

Practical engineer-to-engineer best practices for GNSS antennas in precision agriculture—antenna selection, mounting, cabling, calibration and field-validation for reliable RTK.

Jun 5, 20269 min

Marine

GNSS Antenna Cable & Connector Best Practices for Offshore RTK

Practical, engineer-led guidance for offshore RTK: choose cables (LMR‑240/400), connectors (N/TNC), sealing, grounding, and test steps to maximize C/N0 and reliability.

Jun 4, 20268 min

Marine

Antenna Selection to Reduce Multipath on Ships & Ports

Practical antenna selection and mounting strategies to reduce multipath near ships and ports—improve UAV RTK fix rates, lower residuals, and validate with field tests.

Jun 3, 202611 min

Marine

Marine GNSS Antenna Lifespan: Salt Spray, Humidity, IP67

Engineer-to-engineer guidance on how salt spray, humidity, and IP67 affect marine GNSS antenna lifespan. Includes test plans, RF metrics (S11, C/N0), and integration checklists.

Jun 2, 20269 min

Marine

Maritime GNSS Antenna Best Practices for Drone Engineers

Engineer-focused best practices for maritime GNSS antenna for drones: selection, corrosion protection, mounting, cabling, firmware tuning, and validation for reliable RTK.

Jun 1, 20267 min

UAV & Drone

Antenna Quality in GNSS–IMU Fusion for RTK Drones

Practical engineering guide for drone integrators: how antenna metrics (PCV, axial ratio, gain, cabling) affect RTK+IMU fusion, test protocols, and production checks.

May 31, 20269 min

Survey & RTK

How to Reduce GNSS EMI: Shielding & Filtering Guide

Practical step-by-step guide to reduce GNSS EMI on drones: antenna placement, shielding, CMCs, SAW/LNA trade-offs, and validation to improve RTK C/N0.

May 30, 202610 min

Vehicle

Roof‑mount vs In‑dash GNSS Antennas (2026 Guide)

Compare roof‑mount vs in‑dash GNSS antennas for drones and vehicles — RTK accuracy, multipath, C/N0, EMI, cable/LNA budgets, installation and validation tips.

May 29, 20269 min

Vehicle

GNSS Antennas for ADAS: Multi‑band & Multi‑constellation

Engineering best practices for selecting, mounting, and validating multi‑band, multi‑constellation GNSS antennas to improve RTK reliability in ADAS and UAV integration.

May 28, 20268 min

Vehicle

GNSS Antennas for Vehicles and Autonomous Systems

Practical best practices for selecting, mounting, and validating GNSS antennas for vehicles and autonomous systems to improve RTK accuracy and reliability.

May 27, 20268 min

Timing

How to Install a Rooftop GNSS Timing Antenna (Guide)

Practical step-by-step guide to rooftop GNSS timing antenna installation—cable loss budgeting, grounding/surge entry, mast mounting, IP protection, and commissioning checks.

May 26, 20269 min

Anti-Jamming

GNSS Interference in Urban 5G Sites: RTK Detection & Mitigation

Engineer-focused detection and mitigation for GNSS interference at urban 5G sites—practical RTK guidance on antenna choice, filtering, cabling, firmware, validation.

May 25, 202610 min

Timing

How to Improve GNSS Antenna SNR for Better RTK Holdover

Practical guide to boost GNSS antenna SNR and smart RF filtering for more reliable RTK, fewer cycle slips, and improved timing holdover.

May 24, 20269 min

Timing

Ultimate Guide to 1 kV Lightning Protection for GNSS

Demystify 1 kV lightning protection for GNSS timing sites—standards, protector specs, grounding, and field-tested steps to keep RTK reliable. Read the complete guide.

May 23, 202611 min

Timing

GNSS Timing vs Positioning Antennas (2026): Design & Testing

Compare GNSS timing vs positioning antennas—design goals, key RF metrics (group delay, PCV, axial ratio), testing methods and actionable recommendations for RTK UAVs and timing nodes.

May 22, 202610 min

Timing

GNSS Timing Antennas: The Ultimate Specifier’s Guide

Comprehensive, engineer‑level ultimate guide to GNSS timing antennas for 5G and critical infrastructure—selection, installation, validation, and interference mitigation. Read now.

May 21, 202612 min

Anti-Jamming

Mapping Global GNSS Interference Hotspots: A Multi-Year Trend Analysis (2021–2026)

data-driven look at where GNSS jamming and spoofing are happening, how fast incidents are growing, and what five years of aviation and maritime data mean for antenna and receiver design.

May 21, 202611 min

UAV & Drone

Helical vs Patch GNSS Antennas: UAV RTK Guide (2026)

Compare Helical vs Patch GNSS antennas for UAV RTK: tilt tolerance, multipath, phase‑center stability, ground‑plane needs, mounting and actionable selection tips.

May 20, 20268 min

UAV & Drone

Vibration, Shock & Temperature: GNSS/RTK Drone Antenna Specs

Practical engineering guidance on vibration, shock, and temperature effects for GNSS/RTK drone antennas—testing, mounting, cabling, oscillator choices, and pass/fail heuristics.

May 19, 20268 min

UAV & Drone

UAV RTK Antenna Requirements for Centimeter-Level Mapping

Engineering best practices for UAV RTK antenna selection, mounting, calibration, and validation to achieve reliable centimeter-level mapping accuracy.

May 18, 202611 min

UAV & Drone

GNSS Antenna Placement for Drones: RTK Best Practices

Practical, engineering-grade guide to GNSS antenna placement on drones—mitigating EMI, carbon-fiber detuning, and ground-plane design for reliable RTK performance.

May 17, 20269 min

UAV & Drone

SWaP-C UAV GNSS Antennas: Best Practices for RTK

Practical, field-tested guidance for engineering leads on SWaP-C UAV GNSS antennas—selection, mounting, cabling, EMI mitigation, and RTK validation.

May 16, 20269 min

UAV & Drone

Ultimate Guide: UAV GNSS Antennas — Selection & Integration

Comprehensive engineer‑level guide to choosing, mounting, and validating UAV GNSS antennas for reliable RTK—practical checklists, loss budgets, EMI fixes, and flight‑test advice.

May 15, 202612 min

Anti-Jamming

CRPA Integration for UAVs & Vehicles — Placement & Cabling

Engineer-to-engineer guide on CRPA UAV placement, ground‑plane design, and phase‑matched cabling to improve RTK accuracy and anti‑jam reliability for drones and vehicles.

May 14, 20268 min

Anti-Jamming

Ultimate Guide: GNSS Antenna Burnout Protection

Complete guide to GNSS antenna burnout protection—design stacks, UAV integration, validation tests, and an actionable checklist to safeguard RTK reliability. Read now.

May 13, 202613 min

Anti-Jamming

Anti‑Jamming Performance Measurement for RTK Drones

Practical test setups, KPIs (J/S, null depth, C/N0) and reproducible lab/field procedures for engineers measuring anti‑jamming performance on RTK-capable UAVs.

May 12, 202610 min

Anti-Jamming

How to Choose CRPA Element Count for Drones

Practical guide to selecting CRPA element count (4/7/16/32) for commercial drones—trade-offs, RTK impacts, mounting, calibration, and validation steps.

May 10, 20268 min

Anti-Jamming

Ultimate Guide to GNSS Adaptive Beamforming & Null Steering

Comprehensive guide to GNSS adaptive beamforming and null steering for UAV RTK—metrics, testing recipes, integration checklist and actionable recommendations. Read now.

May 9, 202610 min

Anti-Jamming

CRPA vs Single-Element Antennas (2026): UAV RTK Guide

Practical 2026 comparison of CRPA vs single‑element antennas for commercial UAV RTK — anti‑jam performance, RTK fix rates, SWaP, integration, calibration, and selection advice.

May 8, 202610 min

Anti-Jamming

Ultimate Guide to Anti‑Jamming GNSS Antennas (CRPA)

Comprehensive guide to anti-jamming GNSS antennas (CRPA): how they work, RTK integration, testing protocols, and copy-ready spec checklists for UAV engineers. Read now.

May 7, 202611 min

Survey & RTK

GNSS Antenna Radome Tradeoffs — Protect Hardware, Preserve RTK

Practical guidance for UAV systems engineers on GNSS antenna radome tradeoffs, RTK impacts, validation workflows, material choices, and field‑tested acceptance thresholds.

May 6, 20269 min

Survey & RTK

Ultimate Guide to GNSS L1 L2 L5 Bands

Comprehensive engineer’s guide to GNSS L1 L2 L5 bands and BeiDou B1/B2/B3—practical RTK, antenna integration, interference mitigation, and actionable checklists.

May 5, 20269 min

Survey & RTK

Ultimate Guide to Multi‑Constellation GNSS RTK for Surveying

Engineer‑first ultimate guide on multi‑constellation GNSS RTK for UAV surveying — practical A/B tests, antenna & EMI checklists, and tuning recipes to improve fix rate. Read now.

May 4, 20269 min

Survey & RTK

CORS GNSS Antenna Selection: Practical Checklist

Practical checklist for CORS GNSS antenna selection covering antenna & radome choice, ANTEX/PCO‑PCV calibration, RF chain (cabling, LNA, surge), mounting, and validation tests.

May 3, 20269 min

Survey & RTK

Ultimate Guide to Choke Ring GNSS Antennas

Ultimate guide to choke ring GNSS antenna: what they do, when to use them, UAV-friendly alternatives, mounting, calibration, and RTK test recommendations. Read more.

May 2, 20268 min

Survey & RTK

GNSS Multipath Mitigation for Geodetic Reference Stations

Practical guide for engineers: antenna selection, mounting, cabling, firmware, and validation to reduce GNSS multipath and improve RTK performance for drones.

May 2, 20269 min

Survey & RTK

High-Precision GNSS Antennas for RTK & CORS Guide

Learn the specs and install practices that make GNSS antennas truly “high precision” for surveying, RTK base/rover, and CORS stations.

Apr 29, 20268 min

Survey & RTK

Phase Center Variation PCV: RTK Accuracy Impact

Learn how GNSS antenna PCV creates RTK bias on UAVs—and practical ways to reduce it via calibration, mounting, and validation.

Apr 29, 202610 min